Hi Mark, Linus, I'd like to clarify what the appropriate way to handle pin output voltages is. On the Rockchip SoCs the voltage for some groups of pins can be set between 3.3V and 1.8V ... like the MMC/SD pins who need this to support UHS mode cards.
In [0] when talking about something different, Linus Walleij described a similar case as "I think we need to have a discussion with Mark Brown on how to handle this. We have previously had the case of MMC/SD level-shifters, where a certain setting gives a certain level of signals out, and another setting gives another level. Like two discrete levels. So we modeled that as a regulator provider inside the pin control driver eventually, see sh-pfc/pfc-sh73a0.c" As this sound like exactly the thing I'm trying to solve, is handling this via a regulator the correct general way? Thanks Heiko [0] https://lkml.org/lkml/2014/5/28/147 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
